I have one Bazaar store to develop in Magento. I have created grouped product, with simple product. As per requirement I want to display only Product name and list of product(Which I added in grouped product), Other details like image,and tags,etc don't want to display. For this What things I need to do. Which file I need to override or need to create a new module or need to implement any other technique. Please suggest me what way I follow.
If you are talking about the main product page view (not the list view, i.e. category or search) then you need to look at the catalog/product/view.phtml template file.
Here you can customise how the product is displayed and if you need to test for a grouped product you can use
if($_product->getTypeId() == 'grouped')
And then customise how you want to display the grouped product.
<?php if($_product->getTypeId() == 'grouped'): ?> //grouped product data <?php else: ?> //other product data <?php endif; ?>
You will also need to customise the child html in catalog/product/view/type/grouped.phtml for the simple products of the grouped products in a similar way.